Knife-sharpening device.



PATENTED SEPT. 13, 1904.

T. WILKINS.

FE SHARPENING DEVICE.

PLIOATION FILED DBO. a1. 1903-.

KNI

N0 MODEL.

nvmvmn Th eodore VVZZ/hhs WITNESSES W 22 A TTORNE rs UNITED STATESPatented September 13, 1904.

PATENT OFFICE.

KNlFE-SHARPENING DEVICE.

SPECIFICATION forming part of Letters Patent No. 769,723, datedSeptember 13, 1904.

Application filed December 31, 1903. Serial No. 187,308. (No model.)

To (til whom, it 71mg concern:

Be it known that I, THEODORE XVILKINS, a citizen of the United States.residing at New York, in the county of New York and State of New York,have invented certain new and useful Improvements in Knife-SharpeningDevices, of which the following is a specification, such as will enablethose skilled in the art to which it appertains to make and use thesame.

The object of this invention is to provide an improved knife-sharpeningdevice which may be held in the hand or secured to a table or othersupport and by means of which a knife of any kind or class may be easilyand quickly sharpened and which is also constructed so as to control theangle at which the edge of the knife will be held to the stone or othersharpening medium.

The invention is fully disclosed in the following specification, ofwhich the accompanying drawings form a part, in which the separate partsof my invention are designated by suitable reference characters in eachof the views, and in which- Figure 1 is a side view of one form of myimproved knife-sharpening device and showing the same connected with atable or other support and held in an upright position; Fig. 2, atransverse section of the sharpening device on the line 2 2 of Fig. 1;Fig. 3, a view, similar to Fig. 1, of a modified form of theknife-sharpener; Fig. i, a cross-section thereof on the line 4. L ofFig. 3; and Fig. 5, a view similar to Fig. at, but showing anothermodification.

In the practice of my invention I provide two head or end piecesa,between which a stone or similar device 6 is placed,and the head orend pieces a are preferably provided with rims, flanges, or otherholders 0 within which the ends of the stone are placed. The head or endpieces a. in the form of construction shown in Figs. 1 and 2 areprovided with radially-arranged members a four of which are shown andthrough which are passed rods 0, four of which are employed when thestone Z) is rectangular in form. The rods 0 are arranged at differentdistances from the stone, as shown in Figs. 1 and 2, and in practice theblade of the knife to be sharpened is inserted between one of the rods 0and the stone and moved back and forth over the stone in the usualmanner, and the rods 0, between which and the stone the blade of theknife is inserted, will fix the angle at which the edge of the blade ofthe knife presses on the stone, and by reason of the fact that the rods0 are placed at different distances from the stone this angle may beregulated as desired.

In the form of construction shown in Figs. 1 and 2 is secured to one ofthe head or end pieces a in any desired manner a clamp (Z, by means ofwhich the knife-sharpener may be secured to a table or any othersupport.

In Figs. 3 and d I have shown a modification in which the rods 0 areadjustable toward and from the stone, this adjustment being accomplishedby means of radial slots 0 in the members a, through which the rods 0are passed, and said rods are provided at one end with a thumb-nut f,and by means of this construction the rods 0 may be adjusted toward andfrom the stone, and the angle at which the edge of the blade of a knifeto be sharp ened is held on the stone may be thus easily regulated, andone or more of the rods 0 may be made adjustable and the otherstationary.

It will be understood that the stone 6 may be of any desired shape incross-section; but when provided with flat sides or faces the number ofrods employed will equal the said sides or faces, and in Fig. 5 I haveshown another modification in which the stone 6 and the head or endpieces a are also circular in form, and three of the rods 0 areemployed, said rods being arranged at different distances from thestone.

My improved knife-sharpener is simple in construction and comparativelyinexpensive and may be conveniently used wherever devices of this kindare required.

Having fully described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

1. A knife-sharpener, comprising two end or head portions, a stoneplaced between the same, and a plurality of rods by Which said head orend portions are connected, said rods being arranged at a predetermineddistance from the stone, substantially as shown and de- 5 scribed.

2. A knife-sharpener, comprising two end or head portions, a stoneplaced between the same, and a plurality of rods by Which said head orend portions are connected, said rods IO being arranged at apredetermined distance from the stone and being radially adjustable,substantially as shown and described.

In testimony that I claim the foregoing as my invention I have signed myname, in presence of the subscribing Witnesses,this 30th day I5 ofDecember, 1903.

THEODORE VVILKINS.

Witnesses:

F. A. STEWART, C. E. MULREANY.

